The way the interaction between people and place is understood has implications not only for the explanation of the environment's influence on identity, but also for the definition of the interdisciplinary fields of environmental psychology and the interdisciplinary social sciences of the built environment, for research methods, and for the development of theories within the field. At the same time, some of the different theoretical perspectives are not necessarily mutually exclusive, and the use of theory depends on the type of research (Bell, Greene, Fisher & Baum, 2001; cf. Moore, 1997a). Environmental psychology has been through a series of developments regarding different perspectives of place. Theories have been criticized, leading to further research and development of new theories. Perspectives on place have gone from "physical determinism", where the environment, dimensions, colors, and shapes were seen as having direct effects on behavior, to a view of the people-environment relationship as dynamic and interactive (Franck, 1984). A dynamic and interactive perspective on the environment includes the social, cultural and psychological meanings of a place, which can also be expressed in philosophical and poetic forms.